Coenzyme Q10 can mainly nourish the heart muscle, for patients with myocarditis or myocardial ischemia, taking this drug has a certain improvement effect, its adverse effects do not include making the heart uncomfortable, it is a drug to improve the heart discomfort. In the process of taking this drug, some patients may experience gastrointestinal discomfort, such as nausea and vomiting, but often these discomfort symptoms will disappear after stopping taking the drug. If heart discomfort occurs while taking this drug, consider the possibility that the patient may have an allergic reaction to the drug. Each person’s constitution is different, although Coenzyme Q10 is a very safe drug, but there are some people who are relatively low resistance, poor immunity, for example, will be intolerant to many drugs, but after taking it will appear heart discomfort, for such patients often stop taking this drug can be.